Hd saibay 3. A new monoprotic weak acid is synthesized. This acid is titrated with NaOH (V(NaOH According to the titration curve, the pKa of this weak acid is about: A. 3.3 B. 6.5 C. 11 D. Cannot be determined 12 10 8 6 A 2 0 0 100 200 V (NaOH) 300 maza zidi vol enoitsusizni seads wallot sanal9 igra soliny. Huzor plugs notiontieni ovode sit vollot or stulis 1 400
Hd saibay 3. A new monoprotic weak acid is synthesized. This acid is titrated with NaOH (V(NaOH According to the titration curve, the pKa of this weak acid is about: A. 3.3 B. 6.5 C. 11 D. Cannot be determined 12 10 8 6 A 2 0 0 100 200 V (NaOH) 300 maza zidi vol enoitsusizni seads wallot sanal9 igra soliny. Huzor plugs notiontieni ovode sit vollot or stulis 1 400
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:**Question:**
A new monoprotic weak acid is synthesized. This acid is titrated with NaOH (V(NaOH)). According to the titration curve, the \( pK_a \) of this weak acid is about:
A. 3.3
B. 6.5
C. 11
D. Cannot be determined
**Graph Explanation:**
The provided graph shows a titration curve with pH on the y-axis and volume of NaOH (V(NaOH)) on the x-axis.
- The curve starts at a pH of around 2 and gradually increases.
- It shows a steep increase in pH between 200 and 300 mL of NaOH, indicating the equivalence point.
- Halfway to this steep increase, the pH is about 3.3, which corresponds to the \( pK_a \) of the weak acid.
Based on this information, the correct answer would be:
A. 3.3
Expert Solution
Step 1
Titration curve: The curve obtained from the plot of pH vs the amount of titrant added. Typically, the titrant is a strong acid or strong base.
The titration curves are used to determine the dissociation constants of weak acids or weak bases.
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